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United States Patent | 5,143,699 |
Herter | September 1, 1992 |
Apparatus for processing materials within a bore is disclosed to provide separation of the bore-defining elements without any relative movement between surfaces which are in engagement. Such lack of relevant movement precludes generation of frictional forces which may have catastrophic results where materials being processed are volatile or unstable such as explosives.
Inventors: | Herter; Rainer (Waldwick, NJ) |
Assignee: | Werner & Pfleiderer Corp. (Ramsey, NJ) |
Appl. No.: | 215269 |
Filed: | July 5, 1988 |
Current U.S. Class: | 422/163; 366/83; 366/287; 422/229 |
Intern'l Class: | B01F 007/08 |
Field of Search: | 422/135,163,229 425/207 366/83,287 |
3630689 | Dec., 1971 | Wheeler et al. | 422/135. |
4005853 | Feb., 1977 | Kimmel | 366/83. |
4493630 | Jan., 1985 | Muller et al. | 366/83. |
4702695 | Oct., 1987 | Blach | 366/83. |
Foreign Patent Documents | |||
1289301 | Feb., 1969 | DE | 366/83. |